Robert C. O'Brien

Robert Leslie Carroll Conly, better known by his pen name Robert C. O'Brien, was an American novelist and a journalist for National Geographic magazine. He is best known for his children's novel Mrs. Frisby and the Rats of NIMH (1971), which won the Newbery Medal 1972. His novel was later adapted to Don Bluth's animated film The Secret of NIMH (1982).